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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
Satge: Stage 1
Its robust construction ensures long-lasting protection and performance
Every internal component replaced with new OE components
FCA table values will require adjustment
Coolant Bypass Tube - Water Pump to Thermostat Housing 2011-2016 GM 6.6L Duramax LML Pacific Performance Engineering 2020 Satge: Stage 1The OEM mild steel tube is prone to rust, which can lead to coolant system contamination and eventual leaks. Over time, factory O rings also tend to harden and lose compression, increasing the risk of failure. PPEs upgraded bypass tube is specifically designed to work with the factory water pump and is crafted from high grade 304 stainless to prevent corrosion and ensure reliable, long term performance. OEM PN for Reference: GM 12633704 Features: